@@ -56,14 +56,13 @@
#define DUTY_CYCLE_HIGH_MAX 0x00ffffff
struct kona_pwmc {
- struct pwm_chip chip;
void __iomem *base;
struct clk *clk;
};
static inline struct kona_pwmc *to_kona_pwmc(struct pwm_chip *chip)
{
- return container_of(chip, struct kona_pwmc, chip);
+ return pwmchip_get_drvdata(chip);
}
/*
@@ -273,18 +272,18 @@ static const struct pwm_ops kona_pwm_ops = {
static int kona_pwmc_probe(struct platform_device *pdev)
{
+ struct pwm_chip *chip;
struct kona_pwmc *kp;
unsigned int chan;
unsigned int value = 0;
int ret = 0;
- kp = devm_kzalloc(&pdev->dev, sizeof(*kp), GFP_KERNEL);
- if (kp == NULL)
- return -ENOMEM;
+ chip = devm_pwmchip_alloc(&pdev->dev, 6, sizeof(*kp));
+ if (IS_ERR(chip))
+ return PTR_ERR(chip);
+ kp = to_kona_pwmc(chip);
- kp->chip.dev = &pdev->dev;
- kp->chip.ops = &kona_pwm_ops;
- kp->chip.npwm = 6;
+ chip->ops = &kona_pwm_ops;
kp->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(kp->base))
@@ -304,14 +303,14 @@ static int kona_pwmc_probe(struct platform_device *pdev)
}
/* Set push/pull for all channels */
- for (chan = 0; chan < kp->chip.npwm; chan++)
+ for (chan = 0; chan < chip->npwm; chan++)
value |= (1 << PWM_CONTROL_TYPE_SHIFT(chan));
writel(value, kp->base + PWM_CONTROL_OFFSET);
clk_disable_unprepare(kp->clk);
- ret = devm_pwmchip_add(&pdev->dev, &kp->chip);
+ ret = devm_pwmchip_add(&pdev->dev, chip);
if (ret < 0)
dev_err(&pdev->dev, "failed to add PWM chip: %d\n", ret);
This prepares the pwm-bcm-kona driver to further changes of the pwm core outlined in the commit introducing devm_pwmchip_alloc(). There is no intended semantical change and the driver should behave as before. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/pwm/pwm-bcm-kona.c | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-)